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Commonly used austenitic stainle

Austenitic stainless steel refers to stainless steel that has an austenitic structure at both high and room temperatures. When the steel contains approximately 18% Cr, 8% to 10% Ni, and about 0.1% C, it exhibits a stable austenitic structure. Austenitic chromium-nickel stainless steel includes the well-known 18Cr-8Ni steel, and high Cr-Ni series steels developed by increasing the Cr and Ni content and adding elements such as Mo, Cu, Si, Nb, and Ti. Austenitic stainless steel is non-magnetic and has high toughness and plasticity, but it has lower strength and cannot be strengthened through phase transformation; it can only be strengthened through cold working. Adding elements like S, Ca, Se, and Te can improve its machinability.

Material

304 (06Cr19Ni10)

304L (022Cr19Ni10)

304N (06Cr19N1N)

316 (06Cr17Ni12Mo2)

316H (07Cr17Ni12Mo2)

316L (022Cr17Ni12Mo2)

316LN (022Cr17Ni12Mo2N)

316Ti (06Cr17Ni12Mo2Ti)

316MOD (022Cr18Ni14Mo3)

321 (06Cr18Ni11Ti)

321H (07Cr19Ni11Ti)

347 (06Cr18Ni11Nb)

347H (07Cr18Ni11Nb)

347HFG

317L (022Cr19Ni13Mo3)

309S (06Cr23Ni13)

310S (06Cr25N20)

310HR3C

S30815 (253MA)

Executive standard

GB/T 12771-2019

GB/T 12770-2019